PHP Batch generation thumbnail code

PHP Batch generation thumbnail code

Create a table of contents (directory, [mode])
function Mkdirs ($l 1, $l 2 = 0777) {
if (!is_dir ($l 1)) {
If the directory does not exist, recursion is established
Mkdirs (DirName ($l 1), $l 2);
Return @mkdir ($l 1, $l 2);
}
return true;
}
Save file (file, [content])
function SaveFile ($l 1, $l 2 = ') {
if (function_exists (file_put_contents)) {
File_put_contents ($l 1, $l 2);
} else{
$fp = @fopen ($l 1, ' WB ');
@fwrite ($FP, $l 2);
Fclose ($FP);
}
}
Get file suffix (file)
function Getfix ($l 1) {
Return End (Explode ('. ', $l 1));
}
is the allowable type (current, allowed)
function Checkfix ($l 1, $l 2) {
if (!is_array ($l 2)) {
$l 2 = Explode (', ', Str_replace (', ', $l 2));
}
Return In_array ($l 1, $l 2)? 1:0;
}
Class image{
Source Address
var $src;
New diagram path (after localization)
var $newsrc;

Allowed diagram types
var $allowtype = array ('. jpg ', '. gif ', '. png ', '. jpeg ');
Whether the thumbnail gif, 0 does not handle
var $regif = 0;
Whether to keep the source file (1 is reserved, 0 is MD5)
var $keep = 0;
If you can overwrite a picture that already exists, 0 is not covered
var $over = 0;

Picture Source Directory
var $dir;
Processed Table of Contents
var $newdir;

function __construct ($l 1=null, $l 2=null) {
$this->dir = $l 1? $l 1: "./images/temp";
$this->newdir = $l 2? $l 2: "./images/s";
}

function image ($l 1=null, $l 2=null) {
$this->__construct ($l 1, $l 2);
}

/**
* The file path after processing
* Save the source picture, MD5 file name to the new directory
*
* @ param rename ()
* The filename after the @ return process
*/
function ReName ($SRC) {
MD5 filename (for example: 3293okoe.gif)
$l 1 = substr (MD5 ($SRC), 10,10). STRRCHR ($src, ".");
File name after processing
$l 1 = $this->w. ' _ ' $this->h. ' _ '. $l 1;
Returns the address after processing
return $this->newdir. ' /'. $l 1;
}

/**
* Generate thumbnails
*
* @ param Mini (picture address, width, height, quality)
* If you want to keep the original file name, set $o->keep = 1;
* The image address after the @ return processing
*/
function Mini ($SRC, $w, $h, $q =80) {
$this->src = $src;
$this->w = $w;
$this->h = $h;

Whether to work with GIF images
if (STRRCHR ($SRC, ".") = = ". gif" && $this->regif = = 0) {
return $this->src;
}

Whether to keep the original file name, default does not hold
if (! $this->keep) {
Address of the renamed file
$NEWSRC = $this->rename ($SRC);
} else {
Keep it formerly known
$SRC = str_replace (' \ ', '/', $SRC);
$NEWSRC = $this->NEWDIR.STRRCHR ($src, "/");
}

If it already exists, return the address directly
if (file_exists ($NEWSRC) && $this->over = = 0) {
return $NEWSRC;
}

If it is a network file, save it first
if (Strstr ($src, "http://") &&!strstr ($src, $_server[' Http_host ')) {
$SRC = $this->getimg ($SRC);
}
Get Picture Properties
$arr = getimagesize ($SRC);
$ow = $arr [0];
$oh = $arr [1];
$ot = $arr [2];
Switch ($ot) {
Case 1:
$im = Imagecreatefromgif ($SRC);
Break
Case 2:
$im = Imagecreatefromjpeg ($SRC);
Break
Case 3:
$im = Imagecreatefrompng ($SRC);
Break
Default
return 0;
}
Working with thumbnails
$nim = Imagecreatetruecolor ($w, $h);
$k 1 = round ($h/$w, 2);
$k 2 = round ($oh/$ow, 2);
if ($k 1< $k 2) {
$oow = $ow;
$ooh = Round ($ow * $k 1);
$SW = 0;
$sh = ($oh-$ooh)/2;
}
else {
$oow = $oh/$k 1;
$ooh = $oh;
$SW = ($ow-$oow)/2;
$sh = 0;
}
Generate pictures
if (function_exists (imagecopyresampled)) {
Imagecopyresampled ($nim, $im, 0,0, $SW, $sh, $w, $h, $oow, $ooh);
}
else {
Imagecopyresized ($nim, $im, 0,0, $SW, $sh, $w, $h, $oow, $ooh);
}
Whether the processed directory exists
if (!is_dir ($this->newdir)) {
@mkdir ($this->newdir);
}
Save picture
Switch ($ot) {
Case 1:
$rs = Imagegif ($nim, $NEWSRC);
Break
Case 2:
$rs = imagejpeg ($nim, $NEWSRC, $q);
Break
Case 3:
$rs = Imagepng ($nim, $NEWSRC);
Break
Default
return 0;
}
Returns the path after processing
return $NEWSRC;
}

/**
* Save the network picture
*
* @ param getimg (source map)
* This address (the MD5 file name of the local directory) after it is saved
*/
function getimg ($l 1) {
$l 2 = $this->dir. substr (MD5 ($l 1), 10,10). STRRCHR ($l 1, ".");
File exists, return address directly
if (File_exists ($l 2)) {
echo "Exits ...";
return $l 2;
}

Start getting the file and return to the new path
$img = file_get_contents ($l 1);
if ($img) {
if (!is_dir ($this->dir)) {
@mkdir ($this->dir);
}
SaveFile ($l 2, $img);
echo "File_get";
return $l 2;
}
}

/**
* Convert thumbnails (filename and structure unchanged)
*
* @ param Mini (source address, width, height, quality)
* Address generated by @ return
*/

function reimg ($SRC, $w, $h, $q =80) {
$this->keep = 1;
return $this->mini ($SRC, $w, $h, $q);
}
}